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T20822

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H22 H23
#T20822

Description

USA UNS T20822 Alloy tool steel and T20822 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: T20822
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy T20822 UNS USA Alloy tool steel
T20812
H13
T20813
H14
T20814
H19
T20819
H21
T20821
H22

Chemical composition(mass fraction)(wt.%) of the T20822

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) V(%) W(%)
0.30～0.40 0.15～0.40 0.15～0.40 ≤0.030 ≤0.030 1.75～3.75 0.25～0.50 10.0～11.75

Mechanical Properties of steel grade T20822

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
675 (≥) 128 (≥) 32 14 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade T20822

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
44 - -     0.11 -  
737 351 - 33.3 344   -  
963 - 31 24.2   323 313

Heat Treatment of steel grade T20822

Heat treated : 1679°C - 1347°C

Technological Curves of steel grade T20822

Cross Reference Table (Equivalent Grade) of T20822

Grade Standard Country Application
T20822 UNS USA Alloy tool steel
H23 ASTM USA Alloy tool steel
H22 H23
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